Sun Microsystems Virtual Tape Library manual Management path failover

Key VTL features and options

including the device in question, the failure is local to the primary, and the secondary initiates failover. If the secondary cannot access devices, the outage is global, and no failover occurs.

Service IP addresses carry heartbeat information between VTL nodes and management IP addresses carry commands between nodes and VTL management consoles

management_IP_address_1
	heartbeat
service_IP_address_1	management
	console 1
service_IP_address_2
	heartbeat
	management
management_IP_address_2	console 2

Management path failover

When a high‐availability VTL system fails over, the failover server automatically inherits the failed server’s management IP address, so that remote management consoles can still reach the VTL system.

If the heartbeat signal is lost, the management IP address for the failed node transfers to the healthy node

management_IP_address_1

management_IP_address_2

service_IP_address_1

management console 1

service_IP_address_2
		management
	management_IP_address_2	console 2

10 VTL User Guide • May 2008 G • 96267